A worker has to move an 800 kg crate. He pulls with a force of 5,700 N and the Force of Friction working against him is 900 N. What is the Net Force? What is the acceleration?
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Explanation:
There is a net force being applied in the direction that the crate is being pulled of 5700 N - 900 N = 4800 N.
By Newton's second law, this net force is proportional to the crate's acceleration a by a factor of the crate's mass:
4800 N = (800 kg) a
a = (4800 N) / (800 kg)
a = 6 m/s²
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